Machine-mold.



P. J. HAAS.

MACHINE MOLD.

APPLICATION FILED MAY 20, 1910.

Patented Aug. 8, 1911.

2 SHEETS-SHEET 2.

unirnn srarns Parana OFFiQE.

PHILIP J. HAAS, 0F YORK, NEBRASKA.

MACHINE-MOLD.

T 0 all whom it may concern;

Be it known that I, PHILIP J. HAAS, a citizen of the United States,residing at York, in the county of York and State of Nebraska, haveinvented certain new and useful Improvements in Machine-Molds, of whichthe following is a specification.

This invention relates to machine molds for making fence posts, hitchingposts, window sills and the like, from concrete and other plasticmaterial.

The object of the invention is to provide a mold having a plurality ofpartitions spaced apart to form intermediate molding compartments, saidpartitions being provided with oppositely inclined longitudinal edgesfor beveling the corners of the posts, thus to add to their appearanceas well as to their utility.

A. further object is to form the removable partitions of mating sectionshaving interengaging parts.

A further object is to reinforce and strengthen the opposite ends of thepartitions by inserting filling strips between the sections thereof.

A still further object is generally to improve this class of devices, soas to increase their utility, durability and eficiency.

Further objects and advantages will appear in the following description,it being understood that various changes in form, proportions and minordetails of construction may be resorted to within the scope of theappended claims.

For a full understanding of the invention and the merits thereof,reference is to be had to the following description and accompanyingdrawings, in which:

Figure 1 is a top plan view of a mold constructed in accordance with myinvention; Fig. 2 is a longitudinal sectional view taken on the line 22of Fig. 1, and looking in the direction of the arrow; Fig. 3 is atransverse sectional view taken on the line 33 of Fig. 1; Fig. 4 is aperspective view of one of the partitions detached; Fig. 5 is atransverse sectional view of Fig. 4; Fig. 6 is a detail perspective viewillustrating a modified form of partition.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The improved mold forming the subject matter of the present inventioncomprises a Specification of Letters Patent.

Application filed May 20, 1910.

Patented Alig. s, 1911.

Serial No. 562,549.

fiat supported base 5, preferably formed of wood and having its lowerface reinforced and strengthened by the provision of spaced longitudinalbars or cleats 6, the latter being secured to the base by bolts orsimilar fastening devices 7. The supporting base is further reinforcedand strengthened by spaced tie rods 8 having their intermediate portionsbearing against a transverse rod 9 and their opposite ends extendedupwardly through the material constituting the base and their terminalsthreaded and projected through metallic end plates 10 for engagementwith clamping nuts 11.

Extending across the upper surface of the base 5 are relativelystationary and movable end walls 12 and 13 having spaced verticallydisposed kerfs 1e formed therein and provided with transverse openingsto permit the passage of tension rods 15. Interposed between the endwalls 12 and 13 are a'plurality of longitudinally disposed partitions l6spaced apart to form intermediate molding compartments 17 for thereception of cement, concrete or other suitable material.

The partitions 16 are preferably constructed of metal and are eachformed of matingsections 1S and 19, the metal constituting the oppositelongitudinal edges of the section 19 being bent to produce divergingflanges 20, and 21 and the metal constituting the opposite longitudinaledges of the mat-ing section 18 being provided with hooked terminals 22which overlap the flanges 21, as best shown in Fig. 5 of the drawings,thus to produce inclined faces for contact with the concrete and formthe post with beveled corners.

The metal forming the body portion of each partition is extendedlongitudinally beyond the adjacent end of the partition to form terminallips 23 adapted to enter the kerfs 14 in the adjacent end walls of themold so as to maintain said partitions in proper spaced relation.

Interposed between the lips 23 at the opposite ends of each partition,is a reinforcing plate 24, the latter having its outer end disposedflush with the ends of the lips 23 and its inner end extended for aportion of the length of the partition and ri idly secured to thesections 18 and 19 by a rivet or bolt 25. The partitions are preferablytapered, although the opposite longitudinal edges of said partitions maybe disposed parallel with each other, if desired.

Spaced from the end walls 12 and 13 are auxiliary end walls 26 definingterminal compartments 27 through which extend tension rods 15, thelatter having their outer ends journaled in the auxiliary end walls 26and provided with terminal heads 28 for engagement with acrank 29. Theinner ends of the tension rods are threaded for engagement. withsuitable supporting nuts 30 on which are mounted tension loops or wires31 so that by rotating the crank 29, the wires 31 may be placed undertension before introducing the concrete in the molding compartments.

Pivotally mounted at 32 within one of the terminal compartments 2? arelooking members 33 adapted to bear against the movable end wall 13 andprevent lateral displacement of the partitions during the moldingoperation. Suitable braces or cleats 34 are also pivotally mounted onthe opposite longitudinal edges of the supporting base 5 and adapted tobe swung upwardly in contact with the adjacent partitions, thus toprevent spreading of said partitions when concrete is introduced in themolding compartments.

In using the mold, the wires 31 are looped around the supporting nuts 30and placed under tension by rotating the crank 29, after which thecement or concrete is introduced into the molding compartments andallowed to harden. \Vhen the concrete has set, the locking members 33are swung up wardly to released position and the movable end wall 13moved laterally so as to disengage the adjacent lips 23 from the kerfsin said movable wall, thus permitting the partitions to be readilydetached so as to expose the molded product.

In constructing the partitions, the sections 18 and 19 are first stampedor otherwise bent into shape and then inserted one within the other, theflanges of said sections being subsequently pressed together so as tofirmly unite the sections and prevent accidental separation thereof.

In Fig. 6 of the drawings, there is illustrated a modified form of theinvention especially designed for forming only two 5 beveled corners ona post. In this form of the device, the partition is constructed from asingle piece of metal having its interme' diate portion bent upon itselfto produce a vertical wall 34:, one end of the metal, after the verticalwall 34L is formed, being bent to produce diverging flanges and theother end thereof bent late ally and inwardly to form a hook 36 whichengages the adjacent flange 35, as shown. A reinforc- 0 ing strip isalso preferably interposed between the metal forming the vertical wall34 at the terminal lips of the partition to assist in strengthening thesame.

Having thus described the invention, what is claimed as new is:

1. A partition for molds comprising mating metallic sections, one of thesections having its edges bent to provide diverging flanges, the othersection having its edges bent to provide hook flanges engaging over oneof the flanges of the first section, the flanges being discontinued atthe ends of the sections, and reinforcing plates engaging between theends of the sections.

2. A partition for molds comprising a pair of mating metallic sectionshaving flanges at its edges bent to diverge, the flanges being so bentas to reinforce one of them upon itself providing a double thickmess,the flanges of the opposite section being bent hook shaped to overlapupon the flanges of single thickness of the first section, the bodyportions of the sections extending out from the flanges at their ends,and reinforcing plates interposed between the extended ends of thesections.

In testimony whereof, I aflix my signature in presence of two witnesses.

PHILIP J. HAAS.

Vitnesses JAMES Soorr, IDA lt/I. HAAs.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

